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Abstract:

A bed system, comprising a bed (1), and a foldable cover device (6)
mounted to the bed, wherein the foldable cover device (6) comprises a
bearing structure (8) and a cover material (11) provided on the bearing
structure (8), and wherein the foldable cover device (6) is movable
between a folded position in which the cover device (6) is folded and an
unfolded position in which the cover device (6) is unfolded, thereby at
least partially covering a sleeping area (5) of the bed (1). (FIG. 1)

Claims:

1. A bed system, comprising: a bed (1), and a foldable cover device (6)
mounted to the bed, wherein the foldable cover device (6) comprises a
bearing structure (8) and a cover material (11) provided on the bearing
structure (8), and wherein the foldable cover device (6) is movable
between a folded position in which the cover device (6) is folded and an
unfolded position in which the cover device (6) is unfolded, thereby at
least partially covering a sleeping area (5) of the bed (1).

2. System according to claim 1, wherein the bearing structure comprises a
mechanical bearing structure (8).

3. System according to claim 1, wherein the bearing structure (8) is
configured to be folded/unfolded by rotating bearing elements (9).

4. System according to claim 1, wherein the cover material (11) is made
of a washable material.

10. System according to claim 1, wherein the foldable cover device (6)
comprises a control device configured to establish different operation
modes for foldable cover device characterized by individual operation
parameters.

11. System according to claim 1, wherein the bed (1) is a mobile bed.

12. Portable cover device for a bed (1), comprising a bearing structure
(8) and a cover material (11) provided on the bearing structure (8),
wherein the bearing structure (8) is movable between a folded position in
which bearing structure (8) is folded and an unfolded position in which
bearing structure (8) is unfolded, thereby at least partially covering a
sleeping area (5) of the bed (1).

Description:

[0001] The invention refers to a bed system and a portable cover device
for a bed.

BACKGROUND OF THE INVENTION

[0002] There are challenges due to incidents that happen in hospitals:
During peak time an old women was taken to the hospital with an acute,
but not immediately life-threatening injury. Her daughter had informed
the emergency staff about her mother's dementia. Consequently, to keep an
eye on her during her waiting period she was put into a bed and placed in
the hallway. However, after some time the patient left her bed and also
the hospital. Nobody realized her absence for quite a while: Every staff
member thought somebody else had taken her to an exam. A nurse removed
the empty bed and the missing patient was missed even less. All the docs
and nurses were extremely busy, anyways. Finally they realized that the
patient had left the emergency department. With the help of the police
she was found after a couple of hours at a nearby gas station. Not
wearing a jacket in the middle of the winter, she was hypothermic,
exhausted and of course very confused.

[0003] Dement patients are a growing problem in general. The older people
get, the more they are diagnosed with Alzheimer's and other forms of
dementia and the more they are admitted to the emergency department with
some kind of acute condition.

[0004] The emergency department is a chaotic environment. The waiting room
is unappealing and confusing. Waiting times are nontransparent and
confusing. Many relatives communicate with their mobile phones, despite
of prohibitions. Patients arrive via different ways at the emergency
department. Either they are brought by an ambulance and put into a
surgery room directly, or they are brought in by their relatives or come
in themselves. Then they are either placed into a waiting bed or, if they
are less severely injured, into a waiting room with seats. Usually their
first contact is at the triage booth where a nurse categorizes patients
according to their level of pain (triage). Then patients are either send
to a bed directly or to the administration booth where their name and
data are taken.

[0005] The layout of the emergency department is confusing: There are two
parallel hallways with parallel room numbers. Guidance is almost
non-existent and orientation is difficult. Despite opposite claims, there
is lot of tension between different hierarchy levels and stakeholders:
Doctors sometimes mistrust nurses, nurses mistrust their managing nurses,
patients are angry, relatives feel left out, administrative staff feel
under challenged. The preferred way of communication at the emergency
department seems to be via notes and forms: There are little reminders
and instructions everywhere and forms and guidelines for every imaginable
situation. The main problem for staff members are time constraints and
too less staff.

[0006] Dement patients are extremely stressful for the staff. Often they
are aggressive or they run away. To tackle that problem they are placed
in the hallway so that "everybody" can watch them. Sometimes they are
also fixed with bed safety guard or sedated with drugs. Staff used
work-arounds like post-it notes on the patient's back with their
information or pictures of recurrent dement patients. However, there is
no established routine to communicate dementia. Staff only talks about
the acute condition of the patients. There is no dementia category at the
triage form, either.

[0007] Dementia on the other hand, is a very complex and individual
disease. It deeply affects the patient's personalities and their ability
to life by themselves. It can be very different from patient to patient
and at different phases of the disease. Gradually, dement patients do
indeed forget nearly everything. However, obliviousness is not the only
symptom. Patients loose their ability to correctly evaluate social
situations, to locate themselves in space and time and to concentrate on
"complex" tasks, such as getting dressed or talking on the phone. In
addition, at an early stage many dementia patients still realize their
condition, which often causes a depression. In a later stage, some
patients feel the constant need to move, others are rather apathetic,
some talk, laugh or mumble continuously, others fall silent or get
aggressive. Patients aren't able to recognize their closest relatives or
themselves anymore.

[0008] Concepts that accepts the patient's individual "quirks" work well:
Circled hallways where they can wander around all day long, painted "bus
stops" on the walls of the nursing home for them to wait for the bus.
Many also like old children songs, old pictures and artifacts, like
mechanical coffee grinders. Some like to dance and to dress up, some like
smells and soft fabric to touch it. Some like to sleep with their
mattress on the floor, others walk around at night. Although, they often
don't recognize anybody, the nurses and relatives we talked to were sure
that all patients still realized when somebody cared for them and paid
attention to their needs.

[0009] In one nursing home the staff put chips under the patient's soles
that activated an alarm as soon as the patient passed a light barrier at
the building's exit. In another one, the door only opens with a code,
which is openly displayed next to the touchpad--easy for visitors, nearly
impossible for dementia patients.

SUMMARY OF THE INVENTION

[0010] It is the object of the invention to provide an improved bed
system.

[0011] The object is solved by a bed system according to independent claim
1. In addition, a portable cover device for a bed according to
independent claim 12 is provided. Advantageous developments of the
invention are disclosed in dependent claims.

[0012] According to one aspect of the invention, a bed system is provided,
the system comprising a bed, and a foldable cover device mounted to the
bed, wherein the foldable cover device comprises a bearing structure and
a cover material provided on the bearing structure, and wherein the
foldable cover device is movable between a closed position in which the
cover device is folded and an unfolded position in which the cover device
is unfolded, thereby at least partially covering a sleeping area of the
bed.

[0013] According to another aspect of the invention, a portable cover
device for a bed is provided, the device comprising a bearing structure
and a cover material provided on the bearing structure, wherein the
bearing structure is movable between a folded position in which the
bearing structure is folded and an unfolded position in which the bearing
structure is unfolded, thereby at least partially covering a sleeping
area of the bed.

[0014] By means of the invention an individual treatment can be provided
for a patient lying in the bed. Depending on the actual situation, by the
foldable cover a shielding against the surrounding environment may be
provided for the patient in the bed.

[0015] Preferably, the foldable cover device is mounted to a head end of
the bed. In addition or as an alternative, the foldable cover device is
mounted to other parts of the bed frame, for example a foot end and/or
side rails. In one embodiment, the foldable cover device is detachably
fixed to the bed.

[0016] In a preferred embodiment, the bed is a hospital bed. In general,
the foldable cover device may be adapted for different kinds of beds.
Preferably, adaptation is done by configuring mounting elements for
different beds. The foldable cover device is configured for use with
other hospital bed equipment, for example, a safety fence provided on one
or both sides of the bed.

[0017] In a preferred embodiment of the invention, the bearing structure
comprises a mechanical carrier structure.

[0018] In another preferred embodiment of the invention, the bearing
structure is configured to be folded/unfolded by rotating bearing
elements. In one embodiment, the bearing structure is provided with a
securing mechanism configured to pivotally fix the bearing elements.

[0019] In still another preferred embodiment of the invention, the cover
material is made of a washable material. In addition or alternatively,
the cover material may be provided as at least one of a fire resistant
material and a material which can be sterilized.

[0020] In still some other preferred embodiment of the invention, the
foldable cover device comprises a stimulating device configured to output
optical and/or acoustical stimulating signals to a patient. In one
embodiment, the stimulating device comprises a display and/or a speaker
device. In a preferred embodiment, a device configured to dispense a
flavor to the patient is provided.

[0021] Preferably, the stimulating device comprises a display device
provided on an inner side of the foldable cover device. The display
device may comprise an active display for presenting video data to the
patient. The active display, in one embodiment, comprises a foldable
display made, example, of a thin layer OLED display (OLED--"Organic Light
Emitting Diode"). In addition or alternatively, in a preferred embodiment
a projection area is provided on the inside of the foldable cover device,
preferably in a top roof area of the cover device. A video projector may
be provided together with the foldable cover device to present video
output to the patient on the projection area.

[0022] In a preferred embodiment of the invention, the foldable cover
device comprises a sensor device configured to detect patient signals.
Preferably, the sensor device configured to detect optical and/or
acoustical patient signals. Optical signals may be detected by a camera
device.

[0023] In another preferred embodiment of the invention, the foldable
cover device comprises an information signaling device configured to
optically and/or acoustically present patient information. The
information signaling device may comprise an alarm system. In one
embodiment, an information display device of the information signaling
device is provided on an outer side of the foldable cover device. In
addition or as an alternative, the information signaling device may be
configured to send information signals to a central information system of
the hospital.

[0024] In still another preferred embodiment of the invention, the
information display device comprises a data exchange module configured to
receive patient information data from and/or to send patient information
data to a personal patient data carrier device. The data carrier device
may be provided in a patient bracelet. In a preferred embodiment, data
communication is implanted by wireless data communication. Electronic
patient data received from the personal patient data carrier device may
be used for operation-control of the functional elements of the cover
device. Operation control is provided by a control device operable
connected to one or all functional elements of the cover device. In one
embodiment, the control device comprises a microprocessor and a memory.
For example, control signals initiating stimulating signals to the
patient in dependence on the data received from personal patient data
carrier device are generated by the control device.

[0025] In still some other preferred embodiment of the invention, the
foldable cover device comprises a control device configured to establish
different operation modes for foldable cover device characterized by
individual operation parameters. In a preferred embodiment, the control
device is connected to at least one of the stimulating device, the sensor
device, and the information signaling device.

[0026] Preferably, the bed is a mobile bed. In one embodiment, the
foldable cover device is provided with at least one window allowing
observation from the outside. Preferably, the window is a one-side window
meaning there is no transparency looking at the window from the inner
side where the patient is located.

DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

[0027] Following the invention will be described in further detail, by way
of example, with reference to different embodiments. In the figures:

[0028] FIG. 1 shows a schematic representation of a bed system, wherein a
mobile bed is provided with a foldable cover device in a first position
which may be referred to as an unfolded position,

[0029] FIG. 2 shows a schematic representation of the bed system in FIG.
1, wherein the foldable cover device in a second position which may be
referred to as an intermediate position, and

[0030] FIG. 3 shows a schematic representation of the bed system in FIG.
1, wherein the foldable cover device in a third position which may be
referred to as a folded position.

[0031] In the course developing a new bed system, several needs were
identified as follows.

[0032] Emergency department staff need to first recognize dement patients.
Identification is not so much a problem of diagnosis. Most patients are
brought in by their relatives or by an ambulance from their homes or
nursing homes and their form of dementia are already known. However, that
information is often lost at different points along the way. This leads
to task one: The "d-info" has to arrive at the hospital together with the
"d-patient".

[0033] Secondly, once dement patients are identified the "dementia"
information needs to stay connected to them. All too often, doctors and
nurses only communicate the patient's acute injury. Thus, even if one
staff member recognized and the dementia, the information is often lost
at different points along the way. Sometimes staff used illegal
work-arounds like labeling patients with post-its on their backs, stating
their names and where they belonged. This leads to a task two: The
"d-info" has to stay with the "d-patient" at all times.

[0034] The third need is the one that the hospital staff most clearly
expressed themselves: Monitoring the dement patients. Some dement
patients almost inevitably try to leave the emergency department, thereby
endangering themselves and other people. However, during peak time, there
is simply not enough staff to place somebody next to a dement patients to
pay attention that they don't leave their bed. From this, a task three is
derived: Staff needs to know the location of "d-patients" at all times.

[0035] The dement patients, on the other hand, are confused, nervous and
anxious. They are faced with a total overload of information. They don't
know where they are, what's going on or why they hurt. Strange, unknown
people talk to them and try to explain them things they can't possibly
understand. However, somehow everybody seems to expect them to
understand. Imagine you are in a foreign country. You don't know why you
are even there. You don't know where exactly you are or what time zone
you are in. You don't understand the language and the signs, but the
residents constantly instruct you and even expect important information
and appropriate reactions from you. That's how a dement patient in an
emergency department might feel. So they either react with embarrassment
and try to cover up that nothing makes sense to them, or they express
their anxiousness: They scream and moan, they get aggressive. Or they run
away. Therefore, a task four may be considered: Minimize disorientation
and anxiety for "d-patients". Provide orientation and familiarity.

[0036] Also, the constraints at the emergency department have to be beard
in mind: Lack of time, staff and resources, constant pressure, chaos and
unforeseen, sudden disruptions are the norm not the exception. At the
same time, there are numerous rules, regulations and routines that have
to be strictly followed. Everything that obviously labels the dement
patients inhibits their personal freedom and is legally forbidden. Also
fixations that inhibit their freedom of movement are illegal. For the
dement patient; on the other hand, the solution can't be too
"technical"--it needs to contain technology, however it can't look like
technology as they are not used to it. It can't be anything that would be
attached loosely to their body as they would inevitably get afraid and
remove it.

[0037] Starting from the above, a new bed system was created. FIG. 1 to 3
show a schematic representation of an embodiment of the bed system,
wherein a mobile bed is provided with a foldable cover device in
different positions which represent a first position which may be
referred to as an unfolded position (FIG. 1), a second position which may
be referred to as an intermediate position (FIG. 2), and a third position
which may be referred to as a folded position (FIG. 3), respectively.

[0038] Referring to FIG. 1, a bed 1 is provided with a head end 2, a foot
end 3, and side rails 4. Between the side rails 4 a sleeping area 5 is
provided. In the embodiment depicted, the bed 1 is a mobile bed. A
foldable cover 6 is mounted to the bed 1 at the head end 2 by fixing
means 7. The foldable cover 6 may also be referred to as an extension, a
hook or a top.

[0039] As shown in FIG. 1, the foldable cover 6 is provided with a
mechanical bearing structure 8 made of bearing elements 9 pivotally
mounted by a securing mechanism 10, and a cover material 11 providing an
envelope. In FIG. 1, the foldable cover 6 is in a first position which
may be referred to as an unfolded or expanded position.

[0040] FIG. 2 shows the foldable cover 6 in a second position which may be
referred to as an intermediate or partially expanded position. Finally,
in FIG. 3 the foldable cover 6 is in a third position which may also be
referred to as a folded position. The foldable cover 6 is brought into
the different positions by pivoting the bearing elements 9 together with
the cover material 11.

[0041] Following, further aspects of the new bed system are described.

[0042] A mobile bed cover for dement patients is proposed which may also
be referred to as a bedmobil. There is the foldable cover 6 made of
washable, durable material that works analogous to a stroller
convertible. If a dement patient is at the emergency department,
emergency staff can quickly and with a few simple actions attach the
foldable cover 6 to the patient's bed 1. Thereby the patient will be
shielded from the chaotic surroundings at the emergency department.
Inside the capsule provided by the foldable cover 6, different sensorial
stimuli can be activated: Calming, visual images of example of a starry
sky or nature. Also sounds like chirping or comforting music.
Aromatherapy works well with some dementia patients, and they react well
to haptic stimuli.

[0043] To fulfill the needs of emergency staff, the outside of the
foldable cover 6 may flash in red as soon as the patient leaves the bed
1. Thereby the staff can immediately react and pay attention. In
addition, the foldable cover 6 would work a as an identification device
for the emergency staff: If they see the bed system they know that the
patient placed under it has dementia.

[0044] In one embodiment, there is a combination of the bed system with a
personalized bracelet (not shown) for dement patients. In addition, a
process is used that already starts at the patient's permanent residence,
i.e. their homes or the nursing homes. As soon as a person is diagnosed
with dementia he or she will receive a permanent bracelet and a bed
system as described above. Of course the patients and their relatives
have to be informed about the device's details and functionality and have
to consent to their use.

[0045] First, a dementia bracelet was provided: The patients would get
such a bracelet either already at the ambulance or at the first contact
booth at the hospital. In one embodiment, the bracelet contains a GPS
device (GPS--Global Positioning System) to monitor and track the dement
patients. The staff at the first contact booth would see the location of
the dement patients on a map of the layout of the hospital. Optionally, a
release buzzer for the emergency department doors may be provided with
the patient bracelet to keep the patients inside. The bracelet would also
contain the patient's names, their medical condition and information
about their dementia. The patient bracelet could also monitor the
patient's physical state and inform hospital staff about urgent needs of
the patient.

[0046] The patient bracelet may be made of durable, washable material and
it will be fixed to the patient's arm. It will contain a small and flat
smart card that contains the patient's name, address, a contact person
and some basic medical data. The patient bracelet is provided with a data
storage device and a data communication module configured to receive
and/or send data.

[0047] In the course of the disease, patients, nurses and family members
can add relevant information to the card: Biographical dates that are
important for the patient, pictures of his or her environment and of
favorite items and close persons, reassuring music and the patient's
needs and wishes. Also, in a later phase of the disease the patient will
be categorized into one of four basic categories: Restless Runner,
Lethargic Loner, Anxious Aggressor or Friendly Flirter.

[0048] The patient bracelet has different functions: Firstly, it works
analogously to an electronically ankle manacle. As soon as patients try
to leave their homes, a family member or nurse will be notified. As
patients and/or their family members consented to the use of the bracelet
it will not be an illegal restraint of their personal freedom. Also, the
patients will be used to the bracelet and accept it as something
familiar.

[0049] Secondly, the patient bracelet can be connected to the bed 1 via
bluetooth technology. Thereby, every bed 1 can be individualized and used
according to every patient's special needs. Every patient will have his
or her own bed I at their place of residence. This will also increase the
level of privacy in nursing homes, where the patients often live in
shared bedrooms. They are able to fully retreat into their own world and
thereby link their physical experiences and their sensations to their
mental state. In addition, it will facilitate the care: Nurses and
different caretakers are able to be informed about the patient's needs
and wishes at all times.

[0050] If patients have an acute injury and need to be brought to the
emergency department the information on their bracelets will naturally
accompany them. Emergency staff will recognize dement patients with the
bracelet. With a small scanning device utilizing bluetooth technology
again, the nurse at the triage/first contact booth can put the relevant
data into a computerized patient hospital management system. The data can
now be seen whenever another doctor or nurse scrolls over the patient's
name.

[0051] All dement patients will "automatically" be placed in a bed in
combination with a bed. The bed 1 can again be individualized with the
stored information on the patient bracelet: The patients have their
individual home capsule away from home.

[0052] The patient's dementia category and status that is also stored on
the bracelet, in combination with his or her acute condition will
determine the alarm settings that also function as a combination of bed
and bracelet. If the patient is not allowed to stand up, a nurse will be
informed as soon as the patient tries to leave the bed. If the patient is
categorized as Restless Runner and has a less severe injury, the alarm is
set differently and will only be activated when the patient tries to
leave the emergency department. Analogously to the alarm at the nursing
home the staff at the triage/first contact booth will be informed and can
immediately stop the patient or quickly alarm more staff to look for the
patient.

[0053] The features disclosed in this specification, the claims, and the
figures may be material for the realization of the invention in its
various embodiments, taken in isolation or in various combinations
thereof.